[Studies on residual antimalarial activity of tripynadine in mice and monkeys].

Abstract

This paper reports the experiments in which tripynadine free base at a dose 4.5 times that of ED50 was given to mice by intragastric administration. On the 20th day following the administration the mice were inoculated with 1 x 10(7) RBC infected with Plasmodium berghei ANKA strain. The infection rate was zero, implying that all mice had acquired protection. Although the residual activity time of tripynadine phosphate was longer than that of tripynadine free base or piperaquine phosphate, but tripynadine phosphate caused vomiting in monkeys during the medication. The residual antimalarial activity of tripynadine hydroxynaphthoate was less than that of tripynadine phosphate or tripynadine free base. A total dose of 200 mg/kg of tripynadine free base ensured residual antimalarial activity against P. cynomolgi bastianellii for 20 days. However, the residual activity decreased evidently when the total dose was reduced to 100 mg/kg. In short, it seems that the residual antimalarial activity of tripynadine free base is slightly less than that of piperaquine in monkeys.

• Authors: L Chen, Z R Dai, Z M Ma, X Y Zheng, C Chen
• Journal: Zhongguo ji sheng chong xue yu ji sheng chong bing za zhi = Chinese journal of parasitology & parasitic diseases (Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi) Vol. 11 Issue 3 Pg. 190-4 ( 1993) ISSN: 1000-7423 [Print] China
• PMID: 8168241 (Publication Type: Comparative Study, Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Antimalarials
• Naphthyridines
• Quinolines
• tripynadine
• piperaquine
• pyronaridine

Topics

• Animals
• Antimalarials (therapeutic use)
• Macaca mulatta
• Malaria (prevention & control)
• Mice
• Naphthyridines (therapeutic use)
• Plasmodium berghei
• Plasmodium cynomolgi
• Quinolines (therapeutic use)